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SPEC SHEET
ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
As mobile usage continues to increase, service providers are faced with the challenge of optimizing
and expanding their wireless networks to provide new and existing services. ADC’s ClearGain
®
Tower-Mounted Amplifiers minimize the cost of network expansion and improve quality of
service, allowing service providers to increase profitability from new and existing services.
The ClearGain Tower-Mounted Amplifiers (TMA) improve signal quality by boosting the uplink
signal of a mobile system to increase receiver performance and improve overall coverage.
Benefits:
• Highly advanced LNA amplifies RX signal for improved receiver performance and increase
in coverage
• Dual duplex feature reduces the number of feeder cable runs by providing simultaneous
operation of TX and RX with low TX loss
• Advanced filtering maintains the lowest possible noise figure for improved quality of service
• Slim, stackable design conserves tower space and reduces tower-related costs
• Seamless aluminum construction protects components from the elements
• Modular system is fully compatible with all base stations
• Power and alarming for up to six masthead units is provided from a single unit at the base station
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ClearGain
®
Tower-Mounted Amplifier
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Introduction
Unacceptable network quality is one of the
main reasons for mobile subscriber churn. With
industry churn rates at their current rates, a
service provider’s entire customer base could
be lost in as few as three years. The cost of
acquiring new subscribers to replace the existing
customer base can be enormous. Improvements
in quality of service can directly impact a service
provider’s profitability through the cost savings
associated with increased subscriber retention
and the additional revenue gained from increased
billable minutes of use resulting from improved
signal quality.
While subscribers are willing to pay a premium
for data services, improved quality of service is
necessary to provide new data services. Due to
the tradeoff between bit rate and bandwidth
inherent to data services, improved signal
quality is required to achieve the same level of
performance at even higher data rates. ADC’s
tower-mounted amplifiers (TMAs) help provide
this improvement in signal quality.
The main purpose of a TMA is to boost the
uplink (RX) signal of a mobile system immediately
after the antenna, thereby compensating for
the loss in signal strength that occurs when
the signal is passed through the coaxial feeder
cable to the base transceiver station (BTS) at
the base of the tower. ClearGain TMAs perform
this amplification with the lowest possible noise
contribution, resulting in a substantial increase
in receiver performance and an improvement in
overall coverage. These improvements in quality
of service allow mobile subscribers to place more
calls, longer calls, and successfully complete calls
in an expanded geographic area, resulting in
increased revenue.
ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
+ -
INPUT
NO COM NC
ALARM
MHU
DISCONNECT
Power Distribution Unit
MHU1 MHU2 MHU3 MHU4 MHU5 MHU6
Base
Station
Tower-
Mounted
Amplifier
ANT
BTS
Bias-T
ANT
BTS
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®
Tower-Mounted Amplifier
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System Overview
The ClearGain TMA system is modular, consisting of a masthead unit (MHU), a power distribution
unit (PDU) and a Bias-T Unit, providing full compatibility with all base stations.
The ClearGain MHU offers dual duplex operation and incorporates a highly advanced fixed-gain,
low-noise amplifier (LNA) and high-performance filters for added reliability.
The ClearGain MHU features a slim, lightweight design. This allows two ClearGain MHUs to be
mounted with one set of brackets, conserving valuable and costly tower space and reducing clutter
on the tower. The MHU is protected with a strong, seamless aluminum cover designed to ensure
superior weather protection and resistance to corrosion, resulting in increased reliability.
In the ClearGain TMA system, DC power is supplied to the MHU from a ClearGain PDU. The PDU also
provides alarming and monitoring of feeder cable and up to six MHUs from a single unit. The flexible
design of the ClearGain PDU allows it to be rack- or wall-mounted on the side of a BTS cabinet.
An external Bias-T Unit is used in conjunction with the ClearGain PDU. The Bias-T extracts DC power
from the coaxial cable and inserts signals from the alarm and monitor circuits onto the coaxial cable.
ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
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ClearGain
®
Tower-Mounted Amplifier
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DD900 Masthead Unit Typical Specifications
ELECTRICAL SPECIFICATIONS
Nominal Impedance of RF Inputs and Outputs:
50 Ohm
Frequency Range
TX: 935 - 960 MHz or 925 - 950 MHz
RX: 890 - 915 MHz or 880 - 905 MHz
Duplex Filter Bandwidth:
25 MHz
Passband (RX)
Gain: 12 dB ±0.6 dB
Noise Figure: 1.4 dB typical; 1.9 dB maximum
Dynamic Range
Input at 1 dB Gain Compression: +1.0 dB minimum
IIP3: +15 dBm minimum
Insertion Loss of TX Path (TX to Antenna):
0.5 dB maximum
FILTER SPECIFICATIONS
Passband Return Loss
TX Band: 20 dB minimum; VSWR 1.29:1 maximum
RX Band: 20 dB minimum; VSWR 1.29:1 maximum
INTERMODULATION SPECIFICATIONS
Input Power:
2 x 20 W carriers
GSM 900 TX: -45 dBm minimum
GSM 900 RX: -116 dBm maximum
GSM 1800 RX: -98 dBm maximum
Outside Above Bands: -45 dBm minimum
Maximum Input Power at Each BTS Input
RMS Power: 200 W
Peak Power: 1.44 kW
Duration: 20 microseconds
Period Between Peaks: 550 microseconds
Peak Voltage at TX Input: 130 V
Input Power at Antenna Connector:
+16 dBm minimum
Fault Management:
Bypass
POWER SPECIFICATIONS
Operational Voltage:
7 to 15 Vdc
Operational Current:
140 mA
Alarm Current Level:
175 mA ±5 mA
PHYSICAL SPECIFICATIONS
Dimensions:
280 mm x 250 mm x 85 mm
Weight:
5.5 kg
Material:
Aluminum
Color:
Metal
ENVIRONMENTAL
Temperature Range:
-40°C to +65°C
Outdoor Protection:
IP65
QUALITY
MTBF:
180,000 hours at +25ºC
Lightning Protection
Current Peak: ±5 kA
Rise Time (10-90): 10 microseconds
Peak Half Voltage Time (50-50): 350 microseconds
Test Generator Source Impedance:
1.6 Ohm
REGULATORY
Safety:
EN60950
EMC: EN55022B
Storage: ETS3019-1-1
Transport: ETS3019-1-2
Operation: ETS3019-1-3
APPROVALS
CE
ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
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ClearGain
®
Tower-Mounted Amplifier
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ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
DD900 FullBand Masthead Unit Typical Specifications
ELECTRICAL SPECIFICATIONS
Nominal Impedance of RF Inputs and Outputs: 50 Ohm
Frequency Range
TX: 925 - 960 MHz
RX: 880 - 915 MHz
Duplex Filter Bandwidth: 35 MHz
Passband (RX)
Gain: 12 dB ±0.6 dB
Noise Figure: 1.4 dB typical; 1.5 dB maximum
Dynamic Range
Input at 1 dB Gain Compression: +3.0 dB minimum
IIP3: +13 dBm minimum
Insertion Loss of TX Path (TX to Antenna): 0.7 dB maximum
FILTER SPECIFICATIONS
Passband Return Loss
TX Band: 18 dB minimum
RX Band: 18 dB minimum
Intermodulation
115 dBm
Maximum Input Power at Each BTS Input
RMS Power: 200 W
Peak Power: 5 kW
Duration: 20 microseconds
Period Between Peaks: 550 microseconds
Peak Voltage at TX Input: 130 V
Input Power at Antenna Connector: +10 dBm maximum
Fault Management: Bypass
POWER SPECIFICATIONS
Operational Voltage: 7 to 15 Vdc
Operational Current: 140 mA ±10mA
Alarm Current Level: 350 mA ±10mA
PHYSICAL SPECIFICATIONS
Dimensions: 332 mm x 250 mm x 84 mm (13 in x 9.8 in x 3.3 in)
Weight: 6.6 kg (14.5 lb)
Material: Aluminum
Color: Silver
ENVIRONMENTAL
Temperature Range: -40°C to +65°C
Outdoor Protection: IP65
QUALITY
MTBF: 900,000 hours
Lightning Protection:
IEC61000-4-5
REGULATORY
Safety: EN60950
EMC: ETS300 342-2
Storage: ETS3019-1-1
Transport: ETS3019-1-2
Operation: ETS3019-1-4
APPROVALS CE
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ClearGain
®
Tower-Mounted Amplifier
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DD1800 Masthead Unit Typical Specifications
ELECTRICAL
Nominal Impedance of RF Inputs and Outputs:
50 Ohm
Frequency Range
RX: 1710-1755 or 1720-1765 or 1740-1785 MHz
TX: 1805-1850 or 1815-1860 or 1835-1880 MHz
Passband (RX)
Gain:
12 dB
Noise Figure:
1.5 dB
Bypass Loss:
1 dB, RF Relay Connection
Dynamic Range
Input at 1 dB Gain Compression:
+3 dBm
IIP3:
+13 dBm
Insertion Loss of TX Path (TX to Antenna):
1800TX <0.2 dB
UMTS RX and TX <0.2 dB
900 RX and TX <0.1 dB
Passband Return Loss
TX Band: >18 dB
RX Band: >18 dB
Intermodulation:
-120 dBm
Maximum Input Power (RMS Power):
500 W
POWER
Operational Voltage:
7 to 15 Vdc
Operational Current:
140 ± 10 mA
Alarm Current Level:
350 ± 20 mA
PHYSICAL
Dimensions (HxWxD):
196 mm x 260 mm x 63 mm
Weight:
5 kg
Color:
Silver
Housing:
Aluminum
CONNECTORS
Antenna Connector:
7/16 DIN female
BTS Connector:
7/16 DIN female
ENVIRONMENTAL
Operating Temperature:
-40ºC to +60º
Lightning Protection:
IEC61000-4-5
Vibration
Storage:
ETS3019-1-1
Transport:
ETS3019-1-2
Operation:
ETS3019-1-4
REGULATORY
EMC:
ETS300 342-2
QUALITY
MTBF:
600,000 hours
ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
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ClearGain
®
Tower-Mounted Amplifier
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ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
Bias-T Units
As part of ADC’s modular ClearGain Tower-Mounted Amplifier (TMA) system, the ClearGain Bias-T Unit
can be used indoors and outdoors in conjunction with the ClearGain Power Distribution Unit (PDU) to
extend DC power, alarm and monitoring information between the PDU and the TMA. The Bias-T Unit,
also known as the DC current injector, inserts DC power into the coaxial cable and extracts signals from
the alarm and monitor circuits. ADC’s Bias-T Unit is configured as a kit that includes the Bias-T Unit with
standard international connectors, 3 meters of DC cable, and 1.5 meters of Grounding cable.
Typical Specifications
PRODUCT CONFIGURATION
Main path connectors:
7/16 DIN or N-Connectors
DC injection/Sample port connector:
TNC jack (female)
Mounting and grounding:
/M8 / brk (MH - bulkhead mounting/ M - screw / brk - bracket)
TECHNICAL DATA
Impedance:
50 ohms
Frequency range:
800 to 2200 MHz
Return loss:
> 19 dB
Insertion loss:
< 0.2 dB
RF CW power:
500 W
PIM 3rd order:
< -108 dBm
Surge current handling capability:
3 kA single
Operating temperature:
-40°C to + 65°C (-40°F to 149°F)
Waterproof degree:
IP 65
DC injection / DC bypass current:
< 2 A
DC supply / DC bypass voltage:
< 48 V
MTBF:
600,000 hours
Size:
55 mm x 95 mm x 40 mm (2.17" x 3.74" x 1.57")
Weight:
0.3 kg (.66 lb)
CG0000000DMDF00 CG0000000DFDM00 CG0000000NMNF00 CG0000000NFNM00
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ClearGain
®
Tower-Mounted Amplifier
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Power Distribution Unit
Time and space are important considerations when selecting and installing wireless components at base
transceiver station sites. The simple, compact design of ADC’s ClearGain
®
Power Distribution Unit (PDU) is
intended to help service providers save both. From a compact unit that is easily mounted on a wall or in a
rack, the ClearGain PDU provides power and alarming for up to six ClearGain Tower-Mounted Amplifiers.
Features:
• Provides power and alarm functions for on-site monitoring of up to six masthead units (MHUs)
• Monitors condition of feeder cable
• Wall or rack-mountable to fit available space
• LED indicators for alarm functions
• Simple, compact design allows for easy installation and connections
The ClearGain PDU is an integrated unit that provides power and alarm functions for the ClearGain
TMA system. The PDU monitors the current of the MHU. If an MHU fails, the ClearGain PDU gives an
alarm indication. The ClearGain PDU also monitors the condition of the feeder cable. Alarm indicators
identify failure in the feeder cable or MHUs and in which MHU the failure occurred, providing fast and
easy on-site diagnostics.
The flexible design of the ClearGain PDU allows it to be rack-mounted or mounted indoors on the wall
or on the side of a BTS cabinet.
ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
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ClearGain
®
Tower-Mounted Amplifier
ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
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900/1800 MHz Power Distribution Unit Typical Specifications
ELECTRICAL
Input Voltage:
20-56 Vdc positive/negative ground
Output Voltage:
6 x 13 Vdc each
Maximum Current Drawn:
1.2A
PHYSICAL
Dimensions (HxWxD):
43 x 196 x 103 mm (1.69" x 7.72" x 4.06")
Weight:
<450 g
Color:
Silver
CONNECTORS
Output for MHUs:
SMB, male (qty 6)
Power Connector:
4-pin male
General Alarm Connector:
3-pin male
Indicators:
Green OK/NOK LEDs
Red General Alarm LED
Alarm output:
Alarm output is isolated 3-pin relay connection
Normally open and normally closed connection available
ENVIRONMENT
Storage:
ETS3019-1-1
Transport:
ETS3019-1-2
Operation:
ETS3019-1-3
Housing:
IP40
Temperature Range (Indoor Use):
-20ºC to +65ºC (-4ºF to +149ºF)
Lightning Protection:
IEC 1000-4-5 EMC
Approvals
QUALITY:
MTBF 250,000 hours according to MIL-HDBK-217E
Manufactured under ISO 9001 quality system
ACCESSORIES
Basic Accessories:
Power supply cable (10 m), alarm cable (10 m),
grounding cable (2 m) and wall mounting screws
Optional Accessories:
Mounting hardware for 19" rack mount
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ClearGain
®
Tower-Mounted Amplifier
ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
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Description Catalog Number
ClearGain Masthead Units
900 GSM MHU CG0900DDB25DU00
900 EGSM MHU CG0900DDB25DUEG
DD900 FullBand MHU CG0900DDB35DT00
DD1800 FullBand MHU, Low Band
CG1800DDB45DULO
DD1800 FullBand MHU, Middle Band
CG1800DDB45DUMI
DD1800 FullBand MHU, High Band
CG1800DDB45DUHI
Bias-T Kits*
7/16 DIN male to BTS, 7/16 DIN female to ANT CG0000000DFDM00
7/16 DIN female to BTS, 7/16 DIN male to ANT CG0000000DMDF00
N male to BTS, N female to ANT CG0000000NFNM00
N female to BTS, N male to ANT CG0000000NMNF00
Power Distribution Unit
ClearGain Single Power PDU Kit Includes power cable and grounding cable CG0000000000PEU
O r d e r i n g I n f o r m a t i o n
*Bias-T, DC Cable 4.25 meters (SMB to TNC), Grounding Cable 1.5 meters (one end terminated)
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®
Tower-Mounted Amplifier
ClearGain
®
Tower-Mounted Amplifier
Europe, Middle East, Africa
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Creating a Bill of Materials
A typical site includes three components in various quantities.
You have six TMA options:
1. CG0900DDB25DU00 900DD GSM TMA
2. CG0900DDB25DUEG 900DD EGSM TMA
3. CG0900DDB35DT00 900DD Fullband TMA
4. CG1800DDB45DULO 1800DD Lowband TMA
5. CG1800DDB45DUMI 1800DD Midband TMA
6. CG1800DDB45DUHI 1800DD Highband TMA
The TMAs include: • Mounting hardware
• Grounding lug
• PDU Cable
Ordering information: Order two per sector
You have four Bias-T options (based on connector type and orientation):
1. CG0000000DFDM00 DIN Male to BTS Port, DIN Female to ANT Port
2. CG0000000DMDF00 DIN Female to BTS Port, DIN Male to ANT Port
3. CG0000000NFNM00 N Male to BTS Port, N Female to ANT Port
4. CG0000000NMNF00 N Female to BTS Port, N Male to ANT Port
The Bias-Ts include: • Grounding cable/strap (length 1.5 meters)
• Bias-T cable; go from Bias-T to the PDU (length 14 feet)
Ordering information: Order two per sector
You have one PDU option:
1. CG0000000000PEU Single Power PDU
The PDU includes: • Mounting Hardware
• Power Cable (length 10 meters)
• Alarm Cable (length 10 meters)
• Grounding Cable/strap (length 1.5 meters)
Ordering information: Order one per site
Optional Accessories:
Longer Bias-T Cable CG-PDU-30CABLE (30 foot Bias-T cable)
PDU Rack Mounting Brackets AUX-000076 (19" rack mounting bracket)
AUX-000076 and EB-17P (23" mounting bracket)
AUX-000084 (Siemens cabinet mounting bracket)
Website: www.adc.com
From North America, Call Toll Free: 1-800-366-3891 • Outside of North America: +1-952-938-8080
Fax: +1-952-917-3237 • For a listing of ADC’s global sales office locations, please refer to our website.
ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, Minnesota USA 55440-1101
Specifications published here are current as of the date of publication of this document. Because we are continuously
improving our products, ADC reserves the right to change specifications without prior notice. At any time, you may
verify product specifications by contacting our headquarters office in Minneapolis. ADC Telecommunications, Inc.
views its patent portfolio as an important corporate asset and vigorously enforces its patents. Products orfeatures
contained herein may be covered by one or more U.S. or foreign patents. An Equal Opportunity Employer
105193AE 8/05 Original © 2005 ADC Telecommunications, Inc. All Rights Reserved
SPEC SHEET
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